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Cheap flights from Ontario to Missouri from C$ 240

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Missouri departing on 25/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Missouri

Cheap round-trip flights

Logo
7:15 a.m. - 11:07 p.m.YYZ-MCI
16h 52m1 stop
Logo
5:15 a.m. - 2:20 p.m.MCI-YYZ
8h 05m1 stop
C$ 377
Find Deal
Sat, 25 Oct - Sun, 26 Oct
Logo
7:10 a.m. - 11:07 p.m.YYZ-MCI
16h 57m1 stop
Logo
5:15 a.m. - 8:00 p.m.MCI-YYZ
13h 45m1 stop
C$ 393
Find Deal
Sun, 26 Oct - Mon, 27 Oct
Air Canada Logo
2:15 p.m. - 3:18 p.m.YYZ-STL
2h 03mdirect
Air Canada Logo
4:05 p.m. - 7:00 p.m.STL-YYZ
1h 55mdirect
C$ 486Air Canada
Find Deal
Fri, 12 Sep - Sun, 14 Sep
Air Canada Logo
2:15 p.m. - 3:18 p.m.YYZ-STL
2h 03mdirect
Air Canada Logo
1:30 p.m. - 9:39 p.m.STL-YYZ
7h 09m1 stop
C$ 492Air Canada
Find Deal
Fri, 12 Sep - Sun, 14 Sep
Delta Logo
6:04 a.m. - 4:49 p.m.YYZ-STL
11h 45m1 stop
Delta Logo
6:05 a.m. - 4:08 p.m.STL-YYZ
9h 03m1 stop
C$ 561Delta
Find Deal
Mon, 8 Sep - Thu, 11 Sep
Delta Logo
6:00 a.m. - 8:06 a.m.YUL-STL
27h 06m1 stop
Delta Logo
6:40 a.m. - 12:00 p.m.STL-YUL
4h 20m1 stop
C$ 563Delta
Find Deal
Mon, 8 Sep - Tue, 16 Sep
United Airlines Logo
6:15 a.m. - 3:44 p.m.YUL-STL
10h 29m1 stop
United Airlines Logo
7:04 p.m. - 10:40 a.m.STL-YUL
14h 36m1 stop
C$ 614United Airlines
Find Deal
Wed, 27 Aug - Wed, 3 Sep
United Airlines Logo
12:45 p.m. - 9:32 p.m.YYZ-STL
9h 47m2 stops
United Airlines Logo
7:04 p.m. - 9:58 a.m.STL-YYZ
13h 54m1 stop
C$ 632United Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep
WestJet Logo
6:07 p.m. - 11:14 p.m.YYZ-STL
6h 07m1 stop
WestJet Logo
6:00 a.m. - 6:04 p.m.STL-YYZ
11h 04m2 stops
C$ 652WestJet
Find Deal
Mon, 18 Aug - Thu, 21 Aug
WestJet Logo
8:00 p.m. - 9:15 a.m.YYZ-STL
14h 15m2 stops
WestJet Logo
6:40 a.m. - 5:23 p.m.STL-YYZ
9h 43m1 stop
C$ 675WestJet
Find Deal
Tue, 9 Sep - Thu, 11 Sep

United Airlines flights from Region of Ontario to Missouri

Our best United Airlines deals on Region of Ontario to Missouri flight tickets
United Airlines
27 Aug
YUL6:15 a.m.Montreal Pierre Elliott Trudeau Intl
10h 29m
1 stop
STL3:44 p.m.Lambert-St Louis
3 Sep
STL7:04 p.m.Lambert-St Louis
14h 36m
1 stop
YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 614
Find similar
United Airlines
26 Aug
YYZ12:45 p.m.Toronto Pearson Intl
9h 47m
2 stops
STL9:32 p.m.Lambert-St Louis
2 Sep
STL7:04 p.m.Lambert-St Louis
13h 54m
1 stop
YYZ9:58 a.m.Toronto Pearson Intl
C$ 632
Find similar
United Airlines
11 Sep
YYZ7:00 a.m.Toronto Pearson Intl
14h 46m
3 stops
STL8:46 p.m.Lambert-St Louis
16 Sep
STL9:17 a.m.Lambert-St Louis
5h 29m
1 stop
YYZ3:46 p.m.Toronto Pearson Intl
C$ 633
Find similar

Air Canada flights from Region of Ontario to Missouri

Our best Air Canada deals on Region of Ontario to Missouri flight tickets
Air Canada
12 Sep
YYZ2:15 p.m.Toronto Pearson Intl
2h 03m
STL3:18 p.m.Lambert-St Louis
14 Sep
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
C$ 486
Find similar
Air Canada
12 Sep
YYZ2:15 p.m.Toronto Pearson Intl
2h 03m
STL3:18 p.m.Lambert-St Louis
14 Sep
STL1:30 p.m.Lambert-St Louis
7h 09m
1 stop
YYZ9:39 p.m.Toronto Pearson Intl
C$ 492
Find similar
Air Canada
8 Nov
YYZ2:00 p.m.Toronto Pearson Intl
2h 29m
STL3:29 p.m.Lambert-St Louis
15 Nov
STL4:05 p.m.Lambert-St Louis
2h 01m
YYZ7:06 p.m.Toronto Pearson Intl
C$ 509
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Ontario to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Sat 25/10

7:15 a.m.-11:07 p.m.

1 stop16h 52m

Kansas City

Sun 26/10

5:15 a.m.-2:20 p.m.

1 stop8h 05m

C$ 377

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Sun 26/10

7:10 a.m.-11:07 p.m.

1 stop16h 57m

Kansas City

Mon 27/10

5:15 a.m.-8:00 p.m.

1 stop13h 45m

C$ 393

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 12/9

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 14/9

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

C$ 486

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 12/9

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 14/9

1:30 p.m.-9:39 p.m.

1 stop7h 09m

C$ 492

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 8/9

6:04 a.m.-4:49 p.m.

1 stop11h 45m

Lambert-St Louis

Thu 11/9

6:05 a.m.-4:08 p.m.

1 stop9h 03m

C$ 561

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 8/9

6:00 a.m.-8:06 a.m.

1 stop27h 06m

Lambert-St Louis

Tue 16/9

6:40 a.m.-12:00 p.m.

1 stop4h 20m

C$ 563

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

6:15 a.m.-3:44 p.m.

1 stop10h 29m

Lambert-St Louis

Wed 3/9

7:04 p.m.-10:40 a.m.

1 stop14h 36m

C$ 614

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/8

12:45 p.m.-9:32 p.m.

2 stops9h 47m

Lambert-St Louis

Tue 2/9

7:04 p.m.-9:58 a.m.

1 stop13h 54m

C$ 632

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 18/8

6:07 p.m.-11:14 p.m.

1 stop6h 07m

Lambert-St Louis

Thu 21/8

6:00 a.m.-6:04 p.m.

2 stops11h 04m

C$ 652

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 9/9

8:00 p.m.-9:15 a.m.

2 stops14h 15m

Lambert-St Louis

Thu 11/9

6:40 a.m.-5:23 p.m.

1 stop9h 43m

C$ 675

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Missouri from

How to get the cheapest flight ticket from Region of Ontario to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Missouri?

The month of October is, on average, the cheapest month to fly to Missouri from Region of Ontario, with most prices found around C$ 644. If you are unable to visit Missouri during the month of October, then departing from Region of Ontario during the month November is also very affordable. Most momondo users find prices during this month for around C$ 655.

What is the cheapest day to depart on your flight to Missouri?

Our data shows that Tuesday is the least expensive day to fly to Missouri. Tickets to fly out on this day can be as low as C$ 523. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around C$ 788. These prices are subject to change though, so be sure to set up a Price Alert for flights to Missouri.

What is the cheapest time of day to depart on your flight to Missouri?

Our data shows that the cheapest Region of Ontario to Missouri flights are usually those with departure times in the morning. Our users have found flights to Missouri in the morning for as low as C$ 644. In the evening is when there is more demand to fly to Missouri, so prices are often more expensive at around C$ 875 per ticket.

What is the cheapest Ontario to Missouri flight route?

Fly from Toronto Pearson Intl to Lambert-St Louis for the best Ontario - Missouri flight prices

How far in advance should I book a flight to Missouri?

You are more likely to see cheaper flights to Missouri from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around C$ 749 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Region of Ontario for as low as C$ 617 on momondo.

What cabin class options are available on Ontario to Missouri flights?

There are 1 cabin classes available to choose from on Ontario to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to Missouri flights?

You could potentially save up to 9% on your flight if you consider stops on a Region of Ontario to Missouri flight.

Cheap Region of Ontario to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Missouri

Best price found

C$ 240

Fastest flight time

2h 03m

Direct flights

Every day

Airports in Missouri

2 airports
The best one-way flight to Missouri from Region of Ontario in the past 72 hours is C$ 240. The best round-trip flight deal from Region of Ontario to Missouri found on momondo in the last 72 hours is C$ 377.
The fastest flight from Region of Ontario to Missouri takes 2h 03m
Direct flights go from Region of Ontario to Missouri every day.
There are 2 airports near Missouri: Kansas City (MCI), Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from Ontario to Missouri?

    Prices for flights from Ontario to Missouri are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario to Missouri?

  • How old do you have to be to fly from Ontario to Missouri?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Missouri.

  • What documentation or ID do you need to fly to Missouri?

    The necessary travel and health documents for your Missouri trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Region of Ontario to Missouri?

Best airlines flying from Region of Ontario to Missouri

Compare and see reviews for airlines that fly from Region of Ontario to Missouri with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 427Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
DeltaPriceFrom C$ 474Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom C$ 478Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom C$ 529Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
WestJetPriceFrom C$ 557Free CancellationRating
7.2
2,978 reviews
Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Missouri?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Missouri from Ontario.

Can I find flights from Ontario to Missouri with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Missouri flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Missouri?

Once all potential Ontario to Missouri flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Missouri right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Missouri flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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